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Open Access item The ammonia sensitivity of Pt/GaAs Schottky barrier diodes

Authors:Lechuga, Laura M.
Calle Martín, Ana
Golmayo, Dolores
Briones Fernández-Pola, Fernando
Issue Date:15-Sep-1991
Publisher:American Institute of Physics
Citation:Journal of Applied Physics 70(6): 3348-3354 (1991)
Abstract:In this work a new ammonia gas sensor is presented. Schottky barrier devices, Pt/n‐GaAs, with discontinuous platinum films are sensitive detectors of ammonia gas in a wide temperature range (from room temperature to 150 °C). The effect of parameters such as operation temperature, thickness of the catalytic metal film, background atmosphere, and applied voltage bias on the device sensitivity are investigated. In addition, significant characteristics have been examined including sensitivity limits, linearity of response, and adsorption and desorption kinetics.
Description:7 páginas, 12 figuras.
Publisher version (URL):http://dx.doi.org/10.1063/1.349270
URI:http://hdl.handle.net/10261/27830
ISSN:0021-8979
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Appears in Collections:(IMM-CNM) Artículos

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